Scow or float for house boats and means for propelling same



G. c, HAWLEY. SCOW 0R FLOAT FOR HOUSE BOATS AND MEANS FOR PROPELLINGSAME.

APELICATION FILED SEPT. 20, !921.

- Patentd June 27, 1922.

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GEORGE C. HAWLEY, OF ROCHESTER, NEW YORK.

SCOW OR FLOAT FOR HOUSE BOATS AND MEANS FOR PROPELLING SAME.

Floats for House Boats and Weans for Pro-' pelling Same, of which thefollowing is a specification.

The object of this invention is to provide a new and improved type offloat or scow which is especia-lly adapted for use in the constructionof a house boat.

Anotherobject of this invention is to provide means for propelling thescow or float of the house boat.

These and other objects of the invention will be illustrated in thedrawing, described in the specification and pointed out in the claim atthe end thereof.

In the accompanying drawing,

Figure 1 is a perspective View of a house boat mounted on the scow orfloat built according to my invention.

Figure 2 is a bottom plan view of the scow or float showing thepropelling means therefor.

Figure 3 is a detail perspective view of one of the propeller paddlesand a partial section of the scow in which the paddle is mounted, theparts being viewed from below.

In the several figures of the drawing like reference numerals indicatelike parts.

The scow of the boat forming the subject matter of this invention ismade shallow so as to have very little draft. For this reason the scowis made up in the form of a float of which the bow and the stern arepointed with the port and starboard sides of the float curved toward thebow and stern respectively.

The under side or bottom of the float is cut away at each side thereofas indicated at 1 and 2 in Figures 1 and 2. The middle of the float isprovided at the underside with a series of semi-circular horizontalpockets or recesses 3, 4, 5 and 6. These pockets project from the cutaway portion at each side of the float to the middle of the boat andprovide housings for the propeller paddles 7, 8, 9 and 10 to partiallyrevolve therein.

From an inspection of Figure 3 which illustrates one of the pockets indetail it will be seen that the propeller paddles are carried on a hub11 which is keyed to the ver- Specification of Letters Patent. PatgntedJune 2'? 1922.

Application filed September 20, 1921.

Serial No. 502,068.

tical shaft 12. The hub and shaft 12 are mounted in suitable bearingsprovided in the body of the float above and below the pocket. The bottomof each of the pockets may be made integral with the float or it may beformed by a separate plate that is suitably bolted to the under side ofthe boat to form the extreme bottom thereof.

Each of the propeller paddles is made up of a pair of paddles 14: and 15which are fastened to the ends of a central shaft 13 at right angles toeach other. The shaft which carries the paddles is mounted to rock inthe hub 11, through which it diametrically projects so that the paddlesare held in place on the hub at diametrically opposite sides thereof.

On the bottom of each of the pockets is mounted the stationary cam 16.This cam comprises a segmental bar having an incline formed at each endthereof. This inclined cam surface projects into the pocket on thebottom of which it is mounted and operates to gradually turn each of thepaddles as they come in contact therewith on the rotation thereof. Afeathering effect for the propeller paddles is thus secured as follows:

On the rotation of the shaft 12 by means of the worm and screw gearingshown in Figure 3, the hub 11 rotates and with it the paddles l4: and15. As heretofore pointed out the paddles 14E and 15 are positioned atright angles to each other; that is, when one of the paddles is in avertical position and presents its flat side to the water the other ofthe pad dles is in a horizontal position and presents its narrow edge tothe water. In this way one of the paddles is forced against the waterwith its broad side and therefore displaces a maximum amount of water,while the other of the paddles of the same propeller at the same time isdrawn through the water edge-wise with a minimum amount of frictiontherewith.

The paddles are operated so that they are held vertically when theyproject into the cut away portion on each side of the float and aremoved into the horizontal position when they enter into the pocketsformed in the middle of the float. Thus when one of the paddles entersone of the pockets it encounters the cam 16 and owing toits previousvertical position strikes the cam with the lower edge thereof. This edgethen begins to ride up on the incline of the cam and in doing sogradually turns the paddle from the vertical position to a horizontalposition which. it occupies when the paddle has reached a Position. in wich, t projects to r he iddle of the floatat right angles thereto.

The shaft on Which the paddles are carried is mounted to rock in the hub11 and While one of the paddles is turned by the earn as it enters thepocket on the under side of the float, the other paddle emerges from themake, was oc s. he s af ns e paddle from the horizontal position Whichit dec'upied in the pocket into a vertical positiqn outside "of thepocket In. this Way both of the paddles are gradually and simultaneus ynedYf om. t e r zqnta p i n to 'the vertical position vice versa Thepaddles of. each of. the propeller paddles thus operate individually inthe same, manner; in

which anoar. oi. a rowboat is. operated, in that the Seine feathering ofeach or the paddles secured through the'turn'ing of oppositely mountedaddles placed at opposite angles to each o her in the manner heretof rePQtWQd u The paddles may be driven by any suitable motive power mountedon the float and on the deck of the float may be built any decut awayportion of said float, toward the middlethereof, a pair of paddlesmounted to rotate ineach of the horizontal pockets, said paddles beingmounted diametrically opposite to each other and positioned 180 degreesfrom each other, said paddles being adapted to alternately project outof said pockets toward the sides of said float on the under side thereofand in the cut-away portions thereof, a cam mounted in said pockets onthe bottom and near the inner ends thereof, said cam being adapted to.make contact With one of said paddles of each pair and rock said paddlefrom the vertical to a horizontal position. V V

In testimony whereof: I affix my signature.

GEORGE c. HAWLEY.

